An F3 processor allows for faster communication and calculation speeds which translates to faster and better performance. Has built in memory for blackbox recording, built in osd and top of the line sensors.
Comes with Cleanflight flashed to it but can run the uber popular Betaflight or Raceflight firmwares.
Supports passthrough esc programming with blheli for almost any esc on the market.

36x36mm board with 30.5mm mounting holes

Weight ~6 grams

STM32F303 CPU, 72Mhz inc FPU

High-Capacity Flash (Acro and Deluxe)

MPU6050 accelerometer/gyro

MicroUSB socket

2x 8pin JST-SH sockets (PPM, PWM, SERIAL RX, GPIO, ADC, 3V, 5V, GND)

8x 3pin though-holes for pin headers for ESC/Servo connections

2x 4pin though-holes for pin headers for 2x serial ports

1x 2pin though-holes for pin headers for battery voltage

1x 2pin though-holes for pin headers for buzzer

1x 4pin JST-SH socket for I2C

1x 4pin JST-SH socket for SWD debugging

Weight

25 g

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